The National Transportation Safety Board (NTSB) Recommends That All States Lower the Per Se DUI Legal Limit From 0.08% BAC to 0.05%
The motivation for the change is to reduce the number of road deaths caused by drinking and driving. According to NTSB estimates, drunk driving accounts for a third of all road deaths.
NTSB Chairman Debbie Hersman said before a vote by the panel on a staff report, "This is critical because impaired driving remains one of the biggest killers in the United States."
Some of the more recent actions that have reduced drinking related deaths are federal and state policies, tougher law enforcement, and stepped up national advocacy. The NTSB staff report estimates, lowering the per se BAC for drinking and driving to .05% would save 500-800 lives annually. In the last 30 years, 440,000 lives have been lost in the United States due to drinking and driving.